iiinova — where your digital self keeps evolving

Daniele Polencic @danielepolencic.com · 9h

Just landed: Learn Kubernetes weekly 203! My top picks: 🔍 Dropping Logs in Your Cluster 💤 Scale to Zero with KEDA 🕵️ Hidden Docker Secrets 🐍 Kubex Async Python Client Read it here: kube.today/issues/203

https://assets.learnk8s.io/linkedin-203.png

071

Daniele Polencic @danielepolencic.com · 28/09/2026

Agents are becoming part of everyday Kubernetes operations. How do we know when to trust them? Some mistakes produce an immediate error. Others look like successful fixes until production conditions change 🧵

https://social-planner-temp.uasabi.com/2026/10/28/cbfb-question-linkedin.png

180

Daniele Polencic @danielepolencic.com · 23/09/2026

Just landed: Learn Kubernetes weekly 202! My top picks: 🔀 Strimzi HA Kafka Playbook 🤖 Distributed LLM Inference 0 to 1 🚪 High-Performance AI Gateway 🛡️ Kubesafe: Cluster Safety Read it here: kube.today/issues/202

https://assets.learnk8s.io/linkedin-202.png

080

Daniele Polencic @danielepolencic.com · 21/09/2026

Kubernetes hard mode: how do banks run their platforms? My new book, Kubernetes Architecture in Financial Services, is out now: learnkube.com/kubernetes-architectu… Here is what surprised me while researching it:

https://social-planner-temp.uasabi.com/2026/10/21/fc63-Frame-165.png

https://social-planner-temp.uasabi.com/2026/10/21/5fa6-Screenshot-2026-09-21-at-20.25.12.png

https://social-planner-temp.uasabi.com/2026/10/21/e725-Screenshot-2026-09-21-at-20.24.46.png

https://social-planner-temp.uasabi.com/2026/10/21/4c92-Screenshot-2026-09-21-at-20.24.05.png

180

Daniele Polencic @danielepolencic.com · 16/09/2026

My picks from Learn Kubernetes Weekly 201: 🌐 Linkerd multicluster failover 💸 EKS Spot capacity with Karpenter 🔌 Auto-reconnecting port forwards Read it: kube.today/issues/201

https://social-planner-temp.uasabi.com/2026/10/16/0492-linkedin-201.png

070

Daniele Polencic @danielepolencic.com · 14/09/2026

When does Kubernetes make sense? It is one of the questions we ask during private Kubernetes courses at @learnkube.com. My controversial answer is one application.

https://social-planner-temp.uasabi.com/2026/10/14/8cb1-make-sense.png

198

Daniele Polencic @danielepolencic.com · 09/09/2026

It's Kubernetes newsletter day (and it's also issue 200!!!!) My top picks from this week: 🧪 Local multi-cluster platforms 🔎 Helm security scanning at scale 🛡️ eBPF runtime enforcement Read it: kube.today/issues/200

https://social-planner-temp.uasabi.com/2026/10/09/b6ea-linkedin-200.png

070

Daniele Polencic @danielepolencic.com · 03/09/2026

“The technical depth of demos and deep-dive explanations - so much better than any of the many online on-demand classes I've taken.” This is why we continue to teach Kubernetes live learnkube.com/online-advanced-septe…

https://social-planner-temp.uasabi.com/2026/09/17/f629-10sep.png

088

Daniele Polencic @danielepolencic.com · 02/09/2026

Just landed: Learn Kubernetes weekly 199! My top picks: 🤖 AI Agent for VictoriaMetrics 🍓 Raspberry Pi Homelab with K3s 🏗️ Multi-Cluster Management with Rancher 🔓 Cordium Secretless Sandboxes Read it here: kube.today/issues/199

https://assets.learnk8s.io/linkedin-199.png

070

Daniele Polencic @danielepolencic.com · 26/08/2026

Just landed: Learn Kubernetes weekly 198! My top picks: 🧪 k6 Test Suite on Kubernetes 🔌 WSO2 API Gateway on OpenShift ⚡ Autoscalable GitLab Runners on EC2 🔐 Kubernetes IPsec Connection Operator Read it here: kube.today/issues/198

https://assets.learnk8s.io/linkedin-198.png

080

Daniele Polencic @danielepolencic.com · 24/08/2026

ECS, EKS, or… EC2? If you had an expert whisperer next to you, would it really matter which orchestrator you chose? And are internal developer platforms becoming another harness?

https://social-planner-temp.uasabi.com/2026/09/23/99de-harness.png

080

Reposted by Daniele Polencic

LearnKube @learnkube.com · 21/08/2026

See how networking, scheduling, deployments, storage, autoscaling, and security fit together Join our live Advanced Kubernetes course on 10, 11, 17 and 18 September: learnkube.com/online-advanced-septe…

https://social-planner-temp.uasabi.com/2026/08/28/7ebd-10sep.png

077

Daniele Polencic @danielepolencic.com · 19/08/2026

Just landed: Learn Kubernetes weekly 197! My top picks: 🧪 Ephemeral Environments for QA 🎛️ Tuning Argo CD Defaults 📊 KEDA: Scale Smarter, Not Harder 🤖 Agent Substrate Runtime Read it here: kube.today/issues/197

https://assets.learnk8s.io/linkedin-197.png

080

Daniele Polencic @danielepolencic.com · 12/08/2026

Just landed: Learn Kubernetes weekly 196! My top picks: 📦 Kargo Between CI and ArgoCD 📈 GPU Autoscaling with vLLM 🧠 AI-Aware Kubernetes Routing 🛡️ ESP Kubernetes Reference Implementation Read it here: kube.today/issues/196

https://assets.learnk8s.io/linkedin-196.png

070

Daniele Polencic @danielepolencic.com · 05/08/2026

Just landed: Learn Kubernetes weekly 195! My top picks: 🔒 Nodes/proxy Get: One Permission Too Many 🔑 Kubernetes AuthN the Hard Way 🐛 ArgoCD ServerSideDiff Vulnerability 🛠️ Okteto Dev Platform Read it here: kube.today/issues/195

https://assets.learnk8s.io/linkedin-195.png

080

Daniele Polencic @danielepolencic.com · 03/08/2026

We’ve just confirmed 3 private Kubernetes training engagements for September alone Want to level up your team’s Kubernetes and platform engineering skills? Teams: learnkube.com/corporate-training Individuals: learnkube.com/training

https://social-planner-temp.uasabi.com/2026/08/30/e170-173.png

097

Daniele Polencic @danielepolencic.com · 29/07/2026

Just landed: Learn Kubernetes weekly 194! My top picks: 🎮 Game Servers with Agones 🤝 Multi-Agent A2A on EKS ✍️ Docker Image Signing and Verification 🖥️ AI Cluster Runtime for K8s: NVIDIA AICR Read it here: kube.today/issues/194

https://assets.learnk8s.io/linkedin-194.png

080

Daniele Polencic @danielepolencic.com · 28/07/2026

One million output tokens per second. On Kubernetes KubeFM Season 9 starts with a bang! Federico Iezzi explains how he reached that milestone with Qwen 3.5, vLLM, GKE Autopilot and B200 GPUs 🎙Bart is back. KubeFM is back ku.bz/1xD9Md0mb

081

Daniele Polencic @danielepolencic.com · 22/07/2026

Just landed: Learn Kubernetes weekly 193! My top picks: 🚧 Kubernetes Gotchas Breaking Laravel Deploys 🕵️ Catching Helm Drift 🧩 Fixing 502 Bad Gateway in GKE and Istio 🛡️ Copy Fail Destroyer Read it here: kube.today/issues/193

https://assets.learnk8s.io/linkedin-193.png

081

Daniele Polencic @danielepolencic.com · 15/07/2026

Just landed: Learn Kubernetes weekly 192! My top picks: 🔑 EKS Pod Identity Session Policies 🛡️ Blocking Copy Fail with Tetragon 🌐 PodCIDR Pools with Cilium and vCluster 🗺️ k8scout Attack Path Mapper Read it here: kube.today/issues/192

https://assets.learnk8s.io/linkedin-192.png

081

Daniele Polencic @danielepolencic.com · 08/07/2026

Just landed: Learn Kubernetes weekly 191! My top picks: 🛡️ Secure AI Kubernetes Debugging ☁️ On-Prem Meets Cloud, Finally 📊 Local EKS Log Monitoring 🚫 Copy Fail Blocker Read it here: kube.today/issues/191

https://assets.learnk8s.io/linkedin-191.png

071

Daniele Polencic @danielepolencic.com · 01/07/2026

Just landed: Learn Kubernetes weekly 190! My top picks: 🔒 L7 Filtering with Cilium eBPF 🐛 Debugging Across Container Boundaries 🛡️ Automating Pod Disruption Budgets ⛵ Luxury Yacht: K8s Management App Read it here: kube.today/issues/190

https://assets.learnk8s.io/linkedin-190.png

070

Daniele Polencic @danielepolencic.com · 24/06/2026

Just landed: Learn Kubernetes weekly 189! My top picks: 🚀 GitOps at Enterprise Scale 🖥️ Generative AI at the Edge with EKS Hybrid Nodes 🪖 Deploying OpenClaw with Helm 🐘 OpenEverest Database Platform Read it here: kube.today/issues/189

https://assets.learnk8s.io/linkedin-189.png

070

Daniele Polencic @danielepolencic.com · 17/06/2026

Just landed: Learn Kubernetes weekly 188! My top picks: 🚀 Stateless ArgoCD for Bare-Metal 🔏 Signed, Sealed, and Admitted 🔐 Securing Inference with Authorino 🔍 xpdig: Explore Crossplane Traces Read it here: kube.today/issues/188

https://assets.learnk8s.io/linkedin-188.png

070

Daniele Polencic @danielepolencic.com · 10/06/2026

Just landed: Learn Kubernetes weekly 187! My top picks: 🔐 OAuth with Kindling 🔀 Sharded Multi-Cluster cert-manager 🏗️ Private EKS Cluster with OpenVPN and Grafana 🗃️ Chainloop SDLC Evidence Store Read it here: kube.today/issues/187

https://assets.learnk8s.io/linkedin-187.png

170

Daniele Polencic @danielepolencic.com · 03/06/2026

Just landed: Learn Kubernetes weekly 186! My top picks: 🔧 Fixing ISR Revalidation Across Replicas 🌐 GKE Multi-cluster Gateway 🚀 Migrating VPC CNI to EKS Managed Add-on 🗼 hanoi-cli Read it here: kube.today/issues/186

https://assets.learnk8s.io/linkedin-186.png

081

Daniele Polencic @danielepolencic.com · 01/06/2026

RBAC, OIDC, service accounts, IRSA, TokenReview. Kubernetes auth is usually presented as a bag of separate topics. The API server starts from a smaller question: Who is making this request?

https://res.cloudinary.com/learnk8s/image/upload/v1779716247/authentication-kubernetes-identities-thread-2026/tweet-1-opening.png

170

Daniele Polencic @danielepolencic.com · 27/05/2026

Just landed: Learn Kubernetes weekly 185! My top picks: 🏥 Designing for Failure with CloudNativePG 🏠 Homelab Kubernetes Cluster with $0 Cloud Costs 🔐 From ACM to ALB on EKS Auto Mode ⚡ Zeropod: Scale to Zero Read it here: kube.today/issues/185

https://assets.learnk8s.io/linkedin-185.png

070

Daniele Polencic @danielepolencic.com · 20/05/2026

Just landed: Learn Kubernetes weekly 184! My top picks: 🔒 Securing Crossplane Dashboard 🔑 Leaked Secrets in Version Control 🍓 Production Kubernetes on Raspberry Pi 🩺 Node Healthcheck Operator Read it here: kube.today/issues/184

https://assets.learnk8s.io/linkedin-184-v2.png

071

Daniele Polencic @danielepolencic.com · 18/05/2026

Most Kubernetes metrics tutorials stop just as the interesting part begins. They show Prometheus or Metrics Server, then skip kubelet, cAdvisor, CRI, containerd, and Linux cgroups. That's the part you need if you want to trust your dashboards.

https://res.cloudinary.com/learnk8s/image/upload/v1779111521/learnkube-metrics-twitter-thread-2026/slide-1-v1.png

180

Daniele Polencic @danielepolencic.com · 13/05/2026

Just landed: Learn Kubernetes weekly 183! My top picks: 🎙️ Vibe Coding a K8s Media Server 🐘 CloudnativePG: Postgres on Kubernetes ⚡ CRaC: 88% Faster Spring Boot 👾 Kubeinvaders: Cluster Resilience Testing Read it here: kube.today/issues/183

https://assets.learnk8s.io/linkedin-183.png

071

Daniele Polencic @danielepolencic.com · 11/05/2026

Most Kubernetes production failures are contract failures between the app and Kubernetes. Gulcan and I made an interactive readiness checklist and PDF worksheet for the app behavior that Kubernetes will test before go-live. learnkube.com/production-best-pract…

https://res.cloudinary.com/learnk8s/image/upload/v1778503898/preview-linkedin_orlba9.png

080

Daniele Polencic @danielepolencic.com · 06/05/2026

Just landed: Learn Kubernetes weekly 182! My top picks: 🤖 LLMs on Kubernetes the Easy Way 🌐 Kubernetes Gateway API on EKS via ALB 🔧 Elastic Kubernetes Platform on VMware vSphere 🔐 PII-Shield: Log Sanitizer Read it here: kube.today/issues/182

https://assets.learnk8s.io/linkedin-182.png

071

Daniele Polencic @danielepolencic.com · 29/04/2026

Just landed: Learn Kubernetes weekly 181! My top picks: 🐳 Docker Compose to Kubernetes on AWS 🔄 Automated GitOps: ECR to EKS 🍓 Kubernetes Cluster with Raspberry Pis 🔐 Audicia — RBAC from Audit Logs Read it here: kube.today/issues/181

https://assets.learnk8s.io/linkedin-181.png

181

Daniele Polencic @danielepolencic.com · 22/04/2026

Just landed: Learn Kubernetes weekly 180! My top picks: 🔐 Hardware-backed TLS with YubiHSM 2 📈 KEDA on GKE: Event-Driven Autoscaling 🔀 Migrate from NGINX to Traefik in Minutes 🧠 RootCause MCP Server Read it here: kube.today/issues/180

https://assets.learnk8s.io/linkedin-180.png

080

Daniele Polencic @danielepolencic.com · 21/04/2026

How teams manage node OSes in Kubernetes: - 47.1% replace nodes instead of patching - 55.1% check monitoring/logs first - 74.3% can patch within hours or days after a critical OS CVE Full report: kube.today/immutable-linux-kubernet…

https://res.cloudinary.com/learnk8s/image/upload/v1776758336/immutable-os-infographic_ewntoq.png

0109

Daniele Polencic @danielepolencic.com · 20/04/2026

🚀 I created a map of the Kubernetes control plane. If you’ve ever wondered what happens after `kubectl apply`, this should help: learnkube.com/kubernetes-control-pl… The map is sized for A4 paper, so you can print it out and put it on your wall if you like!

https://res.cloudinary.com/learnk8s/image/upload/v1776667676/control-plane-preview_jiqnmm.png

0117

Reposted by Daniele Polencic

LearnKube @learnkube.com · 16/04/2026

Become an expert in Kubernetes! LearnKube runs its iconic 4-day Advanced Kubernetes course next week! If you want to get your hands dirty with Kubernetes, join us for a workshop packed with hands-on labs! Sign up here: learnkube.com/training

https://res.cloudinary.com/learnk8s/image/upload/v1776345696/23apr_eau8hr.png

098

Daniele Polencic @danielepolencic.com · 15/04/2026

Just landed: Learn Kubernetes weekly 179! My top picks: 🤔 cgroup v1 CPU Shares to v2 CPU Weight 💰 Kubernetes for Pentesters ⚙️ Observability in EKS 👨‍🔧 Prometheus SLO Generator Sloth Read it here: kube.today/issues/179

https://assets.learnk8s.io/linkedin-179.png

091

Daniele Polencic @danielepolencic.com · 13/04/2026

Delete a Pod from a Deployment and a new one appears. The API server didn't create it. The scheduler didn't schedule it yet. A controller inside the controller manager noticed the count was wrong and created a replacement before anything else happened.

https://res.cloudinary.com/learnk8s/image/upload/v1776067746/controller-manager-explained-2026/thread-slide-1.png

166

Daniele Polencic @danielepolencic.com · 08/04/2026

Just landed: Learn Kubernetes weekly 178! My top picks: 🤖 Deploy LLM Models on OpenShift 🔧 Modernizing Jenkins: From Agents to Pods 🏗️ Building a Local Data Platform 🛡️ Netfence: eBPF Network Filter Daemon Read it here: kube.today/issues/178

https://assets.learnk8s.io/linkedin-178.png

080

Daniele Polencic @danielepolencic.com · 01/04/2026

Just landed: Learn Kubernetes weekly 177! My top picks: 🔧 Structured Matching, Patching and Diffing 📋 Kueue: Atomic Admission and Topology Awareness 🔑 Uniform API Server Access with clientcmd 🤖 KubeAttention Read it here: kube.today/issues/177

https://assets.learnk8s.io/linkedin-177.png

070

Daniele Polencic @danielepolencic.com · 25/03/2026

Just landed: Learn Kubernetes weekly 176! My top picks: 🔒 GlusterFS Unprivileged Containers 🚀 Startup CPU Boost with In-Place Pod Resize 🌐 Gateway API on AKS via Azure Application Gateway ✅ Helm CEL Validator Read it here: kube.today/issues/176

https://assets.learnk8s.io/linkedin-176.png

080

Daniele Polencic @danielepolencic.com · 18/03/2026

Just landed: Learn Kubernetes weekly 175! My top picks: 🤖 EKS Hybrid Nodes with KubeVirt 🏢 GKE Multi-Tenancy with RBAC 🔌 Extending Argo Workflows Controller 🔍 kimspect: Container Image Inspector Read it here: kube.today/issues/175

https://assets.learnk8s.io/linkedin-175.png

070

Daniele Polencic @danielepolencic.com · 11/03/2026

Just landed: Learn Kubernetes weekly 174! My top picks: 🎮 Making and Scaling a Game Server with Agones 🗄️ Zero-Downtime PostgreSQL Migration 🚀 From Chaos to 99.9% Uptime 📊 k8s-d2: Kubernetes visualization Read it here: kube.today/issues/174

https://assets.learnk8s.io/linkedin-174.png

190

Daniele Polencic @danielepolencic.com · 10/03/2026

AI coding tools are getting faster. Some people run them directly on production, skipping reviews and checks entirely. Others build chains of requirements docs & architecture decisions. One camp says code is the artifact. The other says specifications.

110

Daniele Polencic @danielepolencic.com · 06/03/2026

I built a few CLI tools for myself: one searches Gmail, another reads GDocs. My AI agent needed to download an email attachment. My CLI didn't have that command. So it found the credentials on disk, called the API directly, and leaked my refresh token.

110

Daniele Polencic @danielepolencic.com · 04/03/2026

Just landed: Learn Kubernetes weekly 173! My top picks: 🧪 Integration Testing with Kubernetes 🔐 Vault OIDC Authentication 🛡️ Admission & Runtime Guardrails ✅ Kogaro Config Hygiene Agent Read it here: kube.today/issues/173

https://assets.learnk8s.io/linkedin-173.png

080

Daniele Polencic @danielepolencic.com · 03/03/2026

You want to share GPUs: one team runs inference, another trains models, and both need the same expensive cards. The problem is that GPUs don't behave like CPU and RAM under contention. (I will cover this on Thursday: ku.bz/multitenant26 ) 🧵

https://res.cloudinary.com/learnk8s/image/upload/v1772544380/gpu-sharing-problems-2026/slide-1.png

198

Daniele Polencic @danielepolencic.com · 02/03/2026

Gulcan and I wrote a free book on right-sizing GPUs in Kubernetes. Here's the short version (thread)

https://res.cloudinary.com/learnk8s/image/upload/v1772004192/kubex-book-2026/slide-1.png

1108